The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into ...

Heavy rain is hitting the Bay Area and coastal areas this week as an atmospheric river moves through Northern California.

An atmospheric river event that slammed California this week is expected to subside on Wednesday after causing some flooding, ...

An atmospheric river is expected to bring three major storms with significant rain, snow and wind to Northern Nevada for the next several days. But what is an atmospheric river? Here's a look at ...

After an unusually dry January, a weather system called an atmospheric river - or Pineapple Express - is now headed towards ...

A prolonged atmospheric river event is set to continue delivering moderate to heavy rain across the Pacific Northwest ...

Here's the latest forecast for an upcoming winter storm that forecasters hope could finally lift Los Angeles County from the ...

After weeks of dry weather, an atmospheric river event begins Friday, kicking off a dramatic flip in the forecast for Lake ...

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

The wet weather fueled by an atmospheric river comes after a dry January helped ignite fires that devastated California. Here ...

The wet weather fueled by an atmospheric river represents an about-face after a dry January helped ignite fires that ...